• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Engine Strange Humming/growling Noise Behind Dash?? 02 Mustang Gt

  • Thread starter Thread starter 02shtangGT
  • Start date Start date Sep 17, 2015
  • Tags Tags
    2002 mustang gt growling noise help humming noise iac

02shtangGT

New Member
Sep 17, 2015
1
0
1
Sep 17, 2015
#1
  • Sep 17, 2015
  • #1
Okay well randomly there will be a growling noise coming from behind the dash. I have experimented a lil and found that it might have to do with the IAC. Most of the time when the AC is on and i quickly shut it off it can be heard for a second or two. It has been a problem that has been persisting lately. Before i would rarely hear it now i hear it everyday, i hear it a lot when im slowing down too. Even when im at a red light it suddenly goes off again. It only happens when the car is running too. I have a youtube video where i captured the noise but you may need earphones since it sounds kind of faint. Also it can be heard from outside the car on the passenger side of the hood. also i remember my IAC was not plugged into my intake once and it would die at idle but i quickly fixed it by repluging the tube and resetting the battery maybe that can be a cause.......anywho any help?

my rpm very slightly gets affected, the needles vibrates.

link: View: https://www.youtube.com/watch?v=bbuN3OqMhR4

you can hear it at 00:06 and at 00:22 (i was popping my knuckles right when it happened so ignore that)
 
S

stanggt88

Member
Oct 16, 2015
11
1
13
Oct 29, 2015
#2
  • Oct 29, 2015
  • #2
If it's a humming type noise coming from engine bay then it's most likely a vacuum leak along intake tube or iac valve. If Its a growling noise behind steering wheel then it's your clock spring binding up and going out.
 

97gtstang01

Active Member
Sep 13, 2015
102
11
28
Oct 29, 2015
#3
  • Oct 29, 2015
  • #3
My ride was just doing this. After I got a new iac. I had gotten a bad part new out of the box. You can get a new one or try cleaning the old one. Also check that the iac bypass hose is not leaking air. I ran all new vacuum lines trying to track it. Then ended up swapping the one off my towncar with the stang as last resort. The stang stopped and towncar started so took the bad iac back now no more fog horn.

sent while thinking of mods for my 4.6s using tapatalk
 
You must log in or register to reply here.

Similar threads

A
2001 Mustang GT, scorched metal smell and noise from trans/diff?
  • AndyE2255
  • Dec 1, 2025
  • SN95 4.6L Mustang Tech
Replies
4
Views
469
SN95 4.6L Mustang Tech Dec 28, 2025
gkomo
Electrical MSD Blaster TFI Coil 8227 loud Chirping Noise.
  • PonyGTrider
  • May 25, 2025
  • Fox 5.0 Mustang Tech
  • 2
Replies
25
Views
1K
Fox 5.0 Mustang Tech May 31, 2025
PonyGTrider
N
Smoking problem 02 gt
  • Nightmare4.6
  • Oct 2, 2024
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
11
Views
780
1996 - 2004 SN95 Mustang -General/Talk- Oct 25, 2024
Manlaw213
M
J
2000 Ford Mustang GT No Crank No Start please help
  • Jowen216
  • Jun 5, 2024
  • SN95 4.6L Mustang Tech
Replies
7
Views
3K
SN95 4.6L Mustang Tech Jul 5, 2024
Jowen216
J
D
Electrical Manual 2003 GT 4.6L coupe that will not start. Thoughts? Resources?
  • DapperFish
  • Jan 17, 2024
  • SN95 4.6L Mustang Tech
Replies
3
Views
1K
SN95 4.6L Mustang Tech Jan 22, 2024
PSKSAM2
P
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?